* {
  box-sizing: border-box;
}

:root {
  --bg-rgb: 28, 23, 36;
  --fg-rgb: 234, 234, 248;
  --accent-rgb: 181, 127, 220;
  --fg: rgb(var(--fg-rgb));
  --bg: rgb(var(--bg-rgb));
  --default-user-color: rgb(126, 208, 255);
  --accent: rgb(var(--accent-rgb));
  --fg-transparent: rgba(var(--fg-rgb), 0.125);
  --bg-transparent: rgba(var(--bg-rgb), 0.125);
  --chat-bg: linear-gradient(var(--fg-transparent), var(--fg-transparent)),
    linear-gradient(var(--bg), var(--bg));
  --autocomplete-bg: linear-gradient(
      var(--fg-transparent),
      var(--fg-transparent)
    ),
    linear-gradient(var(--fg-transparent), var(--fg-transparent)),
    linear-gradient(var(--bg), var(--bg));
}

html {
  background-color: var(--bg);
  color: var(--fg);
  font-size: 1.125rem;
  font-family: sans-serif;
}

html,
body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  overscroll-behavior: none;
  width: 100%;
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
}

video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

#video-container {
  flex-grow: 1;
  flex-shrink: 1;
  display: none;
}

a {
  color: var(--accent);
}

label {
  display: block;
}

input[type="url"],
input[type="text"] {
  background: #fff;
  background-clip: padding-box;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 6px;
  color: rgba(0, 0, 0, 0.8);
  display: block;

  margin: 0.5em 0;
  padding: 0.5em 1em;
  line-height: 1.5;

  font-family: sans-serif;
  font-size: 1em;
  width: 100%;

  resize: none;
  overflow-x: wrap;
  overflow-y: scroll;
}

button {
  background-color: var(--accent);
  border: var(--accent);
  border-radius: 6px;
  color: #fff;
  padding: 0.5em 1em;
  display: inline-block;
  font-weight: 400;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;

  font-family: sans-serif;
  font-size: 1em;
  width: 100%;

  user-select: none;
  border: 1px solid rgba(0, 0, 0, 0);
  line-height: 1.5;
  cursor: pointer;
  margin: 0.5em 0;
}

button:disabled {
  filter: saturate(0.75);
  opacity: 0.75;
  cursor: default;
}

button.small-button {
  font-size: 0.75em;
  padding-top: 0;
  padding-bottom: 0;
}

.subtitle-track-group {
  display: flex;
}

.subtitle-track-group > * {
  margin-top: 0 !important;
  margin-bottom: 0 !important;
  margin-right: 1ch !important;
}

#pre-join-controls,
#create-controls {
  margin: 0;
  flex-grow: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#join-session-form,
#create-session-form {
  width: 500px;
  max-width: 100%;
  padding: 1rem;
}

#post-create-message {
  display: none;
  width: 100%;
  font-size: 0.85em;
}

#chatbox-container {
  display: none;
}

.chat-message {
  overflow-wrap: break-word;
}

.chat-message > strong,
#viewer-list strong {
  color: var(--user-color, var(--default-user-color));
}

@supports (-webkit-background-clip: text) {
  .chat-message > strong,
  #viewer-list strong {
    background: linear-gradient(var(--fg-transparent), var(--fg-transparent)),
      linear-gradient(
        var(--user-color, var(--default-user-color)),
        var(--user-color, var(--default-user-color))
      );
    -webkit-background-clip: text;
    color: transparent !important;
  }
}

.chat-message.user-join,
.chat-message.user-leave,
.chat-message.ping {
  font-style: italic;
}

.chat-message.set-time,
.chat-message.set-playing {
  font-style: italic;
  text-align: right;
  font-size: 0.85em;
}

.chat-message.command-message {
  font-size: 0.85em;
}

.chat-message.set-time > strong,
.chat-message.set-playing > strong {
  color: unset !important;
}

.emoji {
  width: 2ch;
  height: 2ch;
  object-fit: contain;
  margin-bottom: -0.35ch;
}

#chatbox {
  padding: 0.5em 2em;
  overflow-y: scroll;
  flex-shrink: 1;
  flex-grow: 1;
}

#viewer-list {
  padding: 0.5em 2em;
  /* TODO: turn this into max-height instead of fixed height without breaking the chatbox height */
  overflow-y: scroll;
  border-bottom: var(--fg);
  border-bottom-style: solid;
  max-height: 4rem;
  flex-shrink: 0;
}

#chatbox-container {
  background-image: var(--chat-bg);
  flex-direction: column;
  flex-grow: 0;
  flex-shrink: 1;
  flex-basis: 400px;
  overflow: hidden;
}

#chatbox-send {
  padding: 0 2em;
  padding-bottom: 0.5em;
  position: relative;
}

#chatbox-send > input {
  font-size: 0.75em;
  width: 100%;
}

#emoji-autocomplete {
  position: absolute;
  bottom: 3.25rem;
  background-image: var(--autocomplete-bg);
  border-radius: 6px;
  width: calc(100% - 4.5rem);
  max-height: 8.5rem;
  overflow-y: auto;
  clip-path: inset(0 0 0 0 round 8px);
}

#emoji-autocomplete:empty {
  display: none;
}

.emoji-option {
  background: transparent;
  font-size: 0.75rem;
  text-align: left;
  margin: 0 0.25rem;
  border-radius: 4px;
  width: calc(100% - 0.5rem);
  display: flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  scroll-margin: 0.25rem;
}
.emoji-option:first-child {
  margin-top: 0.25rem;
}
.emoji-option:last-child {
  margin-bottom: 0.25rem;
}

.emoji-option .emoji {
  width: 1.25rem;
  height: 1.25rem;
  margin: 0 0.5rem 0 0;
}

.emoji-option.selected {
  background: var(--fg-transparent);
}

#join-session-colour {
  -moz-appearance: none;
  -webkit-appearance: none;
  appearance: none;
  border: none;
  padding: 0;
  border-radius: 6px;
  overflow: hidden;
  margin: 0.5em 0;
  height: 2rem;
  width: 2.5rem;
  cursor: pointer;
}

input[type="color"]::-moz-color-swatch,
input[type="color"]::-webkit-color-swatch,
input[type="color"]::-webkit-color-swatch-wrapper {
  /* This *should* be working in Chrome, but it doesn't for reasons that are beyond me. */
  border: none;
  margin: 0;
  padding: 0;
}

@media (min-aspect-ratio: 4/3) {
  body {
    flex-direction: row;
  }

  #chatbox-container {
    width: 400px;
    height: 100vh !important;
  }

  #chatbox {
    height: calc(100vh - 5em - 4em) !important;
  }
}